Antifungal effect of polygodial on Botrytis cinerea, a fungal pathogen affecting table grapes

Vista sencilla de ítem
dc.contributor.authorCarrasco, H.
dc.contributor.authorRobles-Kelly, C.
dc.contributor.authorRubio, J.
dc.contributor.authorOlea, A.F.
dc.contributor.authorMartínez, R.
dc.contributor.authorSilva-Moreno, E.
dc.date.accessioned2018-04-27T20:48:25Z
dc.date.available2018-04-27T20:48:25Z
dc.date.issued2017-11
dc.descriptionIndexación: Scopus.es_ES
dc.description.abstractThe antifungal activity of polygodial, a secondary metabolite extracted from Canelo, on mycelial growth of different Botrytis cinerea isolates has been evaluated. The results show that polygodial affects growth of normal and resistant isolates of B. cinerea with EC50 values ranging between 117 and 175 ppm. In addition, polygodial markedly decreases the germination of B. cinerea, i.e., after six hours of incubation the percentage of germination decreases from 92% (control) to 25% and 5% in the presence of 20 ppm and 80 ppm of polygodial, respectively. Morphological studies indicate that conidia treated with polygodial are smaller, with irregular membrane border, and a lot of cell debris, as compared to conidia in the control. The existence of polygodial-induced membrane damage was confirmed by SYTOX® Green uptake assay. Gene expression studies confirm that the effect of polygodial on B. cinerea is mainly attributed to inhibition of germination and appears at early stages of B. cinerea development. On the other hand, drimenol, a drimane with chemical structure quite similar to polygodial, inhibits the mycelial growth efficiently. Thus, both compounds inhibit mycelial growth by different mechanisms. The different antifungal activities of these compounds are discussed in terms of the electronic density on the double bond.es_ES
dc.description.urihttp://www.mdpi.com/1422-0067/18/11/2251/htm
dc.identifier.citationInternational Journal of Molecular Scienceses_ES
dc.identifier.issn1661-6596
dc.identifier.otherDOI: 10.3390/ijms18112251
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/5685
dc.language.isoenes_ES
dc.publisherMDPI AGes_ES
dc.subjectAntifungal activityes_ES
dc.subjectBotrytis cinereaes_ES
dc.subjectPolygodiales_ES
dc.titleAntifungal effect of polygodial on Botrytis cinerea, a fungal pathogen affecting table grapeses_ES
dc.typeArtículoes_ES
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Carrasco_H_Antifungal_Effect.pdf
Tamaño:
2.98 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLES
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista